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Emerging Optical Microscopy Techniques for Electrochemistry

Authors
  • Lemineur, Jean-François
  • Wang, Hui
  • Wang, Wei
  • Kanoufi, Frédéric
Type
Published Article
Publisher
Annual Reviews
Publication Date
Jun 13, 2022
Volume
15
Pages
57–82
Identifiers
DOI: 10.1146/annurev-anchem-061020-015943
Source
Annual Reviews
Keywords
License
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Abstract

An optical microscope is probably the most intuitive, simple, and commonly used instrument to observe objects and discuss behaviors through images. Although the idea of imaging electrochemical processes operando by optical microscopy was initiated 40 years ago, it was not until significant progress was made in the last two decades in advanced optical microscopy or plasmonics that it could become a mainstream electroanalytical strategy. This review illustrates the potential of different optical microscopies to visualize and quantify local electrochemical processes with unprecedented temporal and spatial resolution (below the diffraction limit), up to the single object level with subnanoparticle or single-molecule sensitivity. Developed through optically and electrochemically active model systems, optical microscopy is now shifting to materials and configurations focused on real-world electrochemical applications.

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